Modeling Conservation and Change

How can students identify when a chemical change has taken place?

This engaging activity has students investigating the fundamentals of chemical changes. Using molecular models it can also expand to the concepts of conservation of mass and the rearrangement of atoms.

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Middle School Science Teacher Guides

All-new, standards-based, STEM-focused Middle School Science Teacher Guides for Earth Science, Physical Science or Life Science have been designed by educators and curriculum experts for both new and experienced teachers.